They were later joined by drummer Michael Larson and production engineer Daniel Lenz, the latter of which was also responsible for co-writing tracks with Sebastien.
10 on the Billboard 200,[4] and was included in the 2011 Guinness World Records Gamer's Edition as the "most successful video game spin-off soundtrack album".
Additionally, a selection of tracks by Psykosonik appeared in the American version of the game X-Kaliber 2097;[6] these were resequenced for the Super Nintendo Entertainment System by Ali Lexa.
Sebastien left the company in 1998 and went on to pursue new leadership roles at Silicon Valley startups including Enliven which was acquired by Excite.com in 1999.
He also continued work on music and video games projects including Oni, along with fellow ex-Beatnik composer Brian Salter and sound designer Kim Cascone.
Although Sebastien became known for his work at Silicon Valley and Seattle companies as a technology executive, he continued writing music and eventually formed an electronica/new wave duo with Caesar Filori called Basic Pleasure Model in 2003.
Following his time at Beatnik with Thomas Dolby, Sebastien pursued new business and marketing leadership roles at Silicon Valley companies (and eventually Seattle, as part of joining the early Xbox division of Microsoft in 2001).
In 2022, he left Offensive Security to join Raoul Pal at finance education platform and media company Real Vision, as its President.